A corpo



PATENTBDTEB, 16", 1904.

" VINVENTEIH fl ,,ZQM 4,?

1-15 TTURNEY APPLICATION FILED NOV. 20/1901:

W G FARNUM 7 TYPE WRITING MACHINE.

P s A Iul N H0 MODEL. I

HWTNEEEEE;

1n: cams PETKRS c0, FHOYO-LITNLL wASumGTnN. n c

Patented February 16, 1904...

UNITED STATES 1 PATENT OFFICE.

WILLIAM C. FARNUM, OF ARLINGTON, VERMONT, ASSIGNOR TO UNION TYPEVVRITERCOMPANY, OF JERSEY CITY, NEW JERSEY, A CORPO- RATION OF NEW JERSEY.

SPECIFICATION forming part of Letters Patent N0. 752,215, dated February16, 1904.

Application filed November 20, 1901. Serial No. 33,011. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM C. FARNUM, a citizen of the United States,and a resident of Arlington, in the county of Bennington and State ofVermont, have invented certain new and useful Improvements inType-Writing Machines, of which the following is a specification.

My invention relates to a feed mechanism for platens of type-writingmachines. whereby the platen may be rotated independently of the usualline-spacing mechanism thereof in order that any point on the paper maybe brought to the printing-line without adjusting the paper on theplaten.

The object of my invention isto provide a simple and efiicient device ofthe character specified; and to these and other ends, which willhereinafter appear, the invention consists in the novel arrangement andcombinations of parts to be hereinafter described and claimed.

In the accompanying drawings, wherein like reference charactersdesignatecorresponding parts in the various views, Figure 1 is a topview of a platen and platen frame, showing the application of the devicewhich constitutes the subject-matter of my invention. Fig. 2 is anenlarged fragmentary longitudinal sectional view taken on the line a: wof Fig. 5. Fig. 3 is a detail edge view of portions of the mechanism tobe hereinafter described. Fig. 4 is an enlarged transverse sectionaldetail view of the device, the section being taken on the line y of Fig.2 and lookingin the direction of the arrow in said figure. Fig. 5 is anend view of the parts shown in Fig. 1, the view looking toward theright-hand end of the platen.

The invention is shown in the' accompanying drawings as applied to theplaten and platen-frame of a No. 6 Remington machine, it beingunderstood that various of the paperfeeding instrumentalities have beenomitted.

In the drawings, 1 indicates a platen-frame in which a platen 2 ismounted to rotate. The platen may be provided with the usual fingerwheel3 at the left-hand end thereof. The

4 by any suitable means, and the right-hand end of the platen-shaft 4projects beyond the platen-frame and is headed at 5,and thus prevents anoutward movement of certain of the parts. The head on the shaft ispreferably obtained by aheaded screw, the stem of which is received in athreaded opening in an end of the shaft, the head of said screw beingthe head 5. Loosely mounted upon the shaft 4 is a sleeve 6, which islimited against longitudinal movement on the shaft by a collar? thereonand a gear-wheel 8, which is secured to the shaft by a screw 9. Thesleeve 6 has secured'thereto a line-spacing wheel 10, the

' sleeve andwheel being united by a feather 11. Big'idly secured to thesleeve 6 is a fingerwheel 12, which is hollow and adapted to surroundthe various planet-gears, to be hereinafter described. A gear-wheel 13is secured by a feather 14; to the sleeve 6, so as to rotate therewith.Projecting to the right of the finger-wheel12 is a second finger-wheel15, which is mounted loosely upon the platen-shaft a and has secured tothe inner face thereof a disk 16, that carries a laterally-projectingheaded stud 17, which constitutes a pivotal bearing for a carrier 18,that is recessed at 19 to form a bearing for cooperation with thepivotal stud or pin 17. This carrier is likewise provided near one endwith a slotted bearing 20 for the reception of a shaft 21 of thedilferential planet-gears 22 and 23, which are connected to rotatetogether by a pin 22*. That end of the carrier 18 which is on theopposite side of the pivotal bearing 19 is apertured at 24 for thereception of one end of a spring 25-, and the opposite end 26 of thisspring is bent to form a hook-like bearing, as shown in Fig. 4:, thatcooperates with a stud 27, that projects from the disk 16. The flexionof the spring 25 tends to maintain the planet-gears 22 and 23 in closeengagement with their oooperating gears 8 and 13, so that no lost motionor backlash will take place in the movement of the gears. From anexamination of Fig. 2 it will be observed that the disk 16 closes theopen end of. the finger-wheel 12, so

platen 2 is rigidly secured to the platen-shaft i that the variousplanet-gears are entirely inclosed by the finger-wheel 12 and the disk16, and there is no liability of the gears becoming disarranged in themanipulation of the machine, and the parts are maintained free fromaccumulating dust and present a neat appearance. The line-spacing wheelis provided on its periphery with ratchet-teeth 28, with which aline-spacing pawl 29 cooperates. The pawl 29 is pivotally connected at30 to one arm 21 of a two-arm line-spacing lever, which is pivoted tothe platen-frame at 32. The other arm 33 of this two-arm lever isprovided with a finger-piece 34, by means of which it may be vibrated,the parts being restored to the normal position by a coiled spring 35,which is secured at one end to the platen-frame and at its opposite endto the two-arm linespacing lever. The line-spacing pawl 29 is providedwith a depending arm 36, which is adapted to abut against a piece 37which is pivoted to the platen-frame at 38 and is provided with threefaces 39', against any one of which the depending arm abuts when theparts are in the normal position, depending upon the position to whichthe piece 37 has been moved or rotated around its pivot 38, it beingunderstood that suitable means are provided to retain the piece in anyone of the three positions to which it may be adjusted. In this manner achange in the extent of throw of the line-spacing lever and pawl iseffected in order to turn the line-spacing wheel one, two, or moreteeth, as determined by the positioning of the piece 37 and in the feedmovement of the pawl 29 the depending arm 36 abuts against and islimited by a pin 36 carried by the arm 31. This arm 31 likewise carriesa rigid locking-pawl 31 which at the limit of the feed movement of thepawl 29 will be brought into engagement with the teeth of thelinespacing wheel 10, thus looking it against further rotation.

Cooperating with the peripheral teeth on the line-spacing wheel 10 is aroller 40, which is supported by a spring 41, that is secured at 12 tothe platen-frame and whichpresses the roller against the teeth. Thisspring-pressed roller 40 tends to maintain the line-spacing wheelagainst accidental displacement.

In the operation of the device for ordinary line-spacing a rotation willbe given to the line-spacing wheel 10 by. the spacing-lever, and acorresponding rotation will be transmitted to the platen 2 by reason ofthe fact that the various gears are in mesh, and the gears 22 and 23will revolve bodily with their cooperating gears and with thefinger-wheel 12. Should the operator desire to provide a differentialspacingthat is to say, provide a rotating movement of the platen whichdiffers from that which may be attained with the line-spacing wheel 10itis merely necessary to rotate the finger-wheel 15, which will cause thedisk 16 to be rotated with it, thus carrying the differential gears '22and 23 around their shaft and the line-spacing wheel 10 or to rotate theplaten with relation to the line-spacing wheel when the latter is heldagainst movement. The spring detent-roller 4:0 is relied upon in orderto secure the line-spacing wheel against movement during this rotationof the parts by means of the finger-wheel 15.

The finger-wheel 12 is at all times efiective to move the line-spacingwheel 10 and the platen 2 together, all of the parts at this time beingmoved bodily, as is the case when the line-spacing wheel itself isoperated by the pawl 29.

It will be understood that the device for moving the platen withrelation to the linespacing wheel is effective, not only to provide adifferential spacing that cannot be attained by the ordinaryline-spacing device for filling in partly-printed blanks and the like,but that it is eifective to change the various points of impact of thetype upon the platen or to distribute the wear, so that the entiresurface of the platen may be used and the wear will not be produced atfixed lines thereon.

From the foregoing it will be understood that the line-spacing wheel,the difierential gearing, and regulating finger-wheel therefor may belocated at one end of the platen andoutside of the platen-frame; thatsaid device may be situated wholly outside of and extraneous to theplaten; that said devices do not occupy any of the space between the endbars of the platen-frame, and that it is unnecessary to reduce thelength of the platen to accommodate said devices; that it is unnecessaryto provide a special construction of the platen in order to employ thedevices, and that they may be readily applied to existing forms oftypewriting machines.

While I have shown the gear-wheels 22 and 23 as separate wheels that areconnected to rotate together, obviously they'may be made ,wheel, and afinger-wheel rigidly connected line-spacing wheel and the platen-shaft,and hand-operated means for moving said train of gears to eifect amovement of the platen and platen-shaft independently of theline-spacing wheel, the said train of gears, line-spacing wheel andhand-operated means being located at the same end of the platen.

2. In a type-writing machine, the combination of a line-spacing wheel, afinger-wheel rigidly connected thereto, a platen-shaft, a platen securedthereto and adapted to be turned independently of the line spacingwheel, a train of gears cooperating with the line-spacing wheel and theplaten and adapted to rotate bodily therewith when the line-spacingwheel is rotated for regular line-spacing or when said finger-Wheel isturned, and handoperated' means for 'moving said train of gears toeffect a movement of the platen and platen-shaft independently of theline-spacing wheel for fractional spacing.

, 3. In a type-writing machine, the combination of a line-spacing wheel,a platen-shaft, a platen secured thereto and adapted to be turnedindependently of the line-spacing wheel, a train of gears cooperatingwith the -line-spacing wheel and the platen and adapted to rotate bodilytherewith when the line-spacing Wheel is rotated for regularline-spacing, hand-operated means for moving said train of gears toeffect a movement of the platen and platen-shaft relatively to theline-spacing to the line-spacing wheel for rotating the line-spacingwheel, the gears, the platen-shaft 'and the platen all together forregular linespacing.

4:. In a type-writing machine, the combination of a line-spacing Wheel,a platen adapted to move independently thereof, planet-gears cooperatingwith the line-spacing wheel and platen, and means for turning theplanetgears to effect a movement of the platen independently of theline-spacing wheel, said linespac'ing wheel, planet-gears, and the meansfor turning the planet gears being located at one end of the platen.

5. Ina type-writing machine, the combination of a platen-frame, aline-spacing wheel, a

platen adapted to move independently thereof,

planet-gears cooperating with the line-spacing wheel and platen, meansfor rotating the platen line-spacing wheel and planet-gears together asa whole, and means for turning the planetgears to effect a movement oftheplaten independently of the line-spacing wheel, said'linespacingwheel, planet-gears and the means for turning the planet-gears fordifferential spac- 6 ing being located at the end of the platen andoutside of the platen-frame.

6. In a type-writing machine, the combina-' tion of a line-spacingwheel, a platen adapted 'to move independently thereof, planet-gearscooperating with the line-spacing wheel and platen, a finger-wheelrigidly connected to the line-spacing wheel and operatively connected tothe planet-gears and platen, for rotating them togetheras a Whole, and afinger-wheel for turning the planet-gears to effect a movement of theplaten independently of the linespacing wheel.

7. In a type-writing machine, the combination of a line-spacing Wheel, aplaten adapted to move independently thereof, planet-gears cooperatingwith the line-spacing wheel and platen, means for turning theplanet-gears to effect a movement of the platen independently of theline-spacing wheel, and spring-pressed means for maintaining a closeengagement betweenvarions of said planet-gears.

8. In a type-writing machine, the combination of a platen, aline-spacing wheel, a fingerwheel operatively connected thereto, planetgears contained within said finger-wheel and cooperating with the platenand the line-spacing wheel, and'means independent of said finger-wheelfor turning the planet-gears to effect a movement of the platenindependently of the line-spacing wheel.

9. In a type-writing machine, the combination of a platen, aline-spacing wheel, differential planet-gears cooperating with theplaten and the line-spacing Wheel, means for turning the planet-gears toeffect a movement of V the platen independently of the line spacingwheel, and line-spacing mechanism cooperating with the line-spacingwheel to effect a movement thereof together with the platen,

movement of the platen independently of the line-spacing Wheel, andline-spacing mechanism cooperating with the line-spacing wheel to elfecta movement thereof together with the platen, and means for locking saidline-spacing wheel against rotation.

11. In a type-writing mach ine, the combination of a line-spacing wheel,a platen adapted to move independently thereof, a finger-wheel adaptedto rotate the platen and line-spacing wheel together, toothedplanet-gears cooperating with the line-spacing wheel and platen, saidplanet-gears being effective to aflord a rotation of said finger wheel,line spacing wheel and platen together, a second finger wheel carryingcertain of said toothed planetgears and adapted to rotate the same toeffect 'a movement of the platen independently of the line-spacingwheel, and means for retaining the line-spacing wheel against movementwhile said second finger-wheel is being rotated.

12. Ina type-writing machine, the combination of a line-spacing wheel, aplaten adapted to move independently thereof, a finger-wheel adapted torotate the platen and line-spacing wheel together, toothed planet-gearscooperating with the line-spacing wheel and platen, a finger-wheelcarrying certain of said toothed planet-gears and adapted to rotate thesame to effect a movement of the platen independently of theline-spacing wheel,movable means for retaining the line-spacing wheelagainst movement and spring-pressed means for maintaining said toothedgears in close mesh to prevent lost motion or backlash.

13. In atype-writingmachine, the combination of a line-spacing wheel, aplaten adapted to move independently thereof, a finger-wheel adapted torotate the platen and line-spacing wheel together, toothed planet-gearscooperating with the line-spacing wheel and platen and surrounded bysaid finger-wheel, a regulating finger-wheel, a carrier connected tosaid regulating fingerwheel and carrying certain of said toothedplanet-gears and adapted to effect a movement of the platenindependently of the line-spacing wheel. v 14. Inatype-writing machine,the combination of a line-spacing wheel, a platen adapted to moveindependently thereof, a hollow openended finger-wheel, planet-gearscontained within said finger-wheel and adapted to cooperate with theplaten and line-spacing wheel, and hand-operated means for actuatingsaid planet-gears to rotate the platen independently of the line-spacingwheel, said hand-operated means including a disk which closes the openend of the hollow finger-wheel.

15. In atype-writing machine, the combination of a platen, aline-spacing wheel adapted to move independently thereof, a train ofgears cooperating with the line-spacing wheel and the platen, andhand-operated means for moving said train of gears to effect a movementof the platen independently of the line-spacing wheel, saidhand-operated means including a pivoted spring-pressed carrier forcertain of said planet-gears.

16. In a type-writing machine, the combination of a platen, aline-spacing ratchet-wheel therefor, a finger-wheel rigidly connected tosaid ratchet-wheel, a gear-wheel which is connected to theratchet-wheel, and gear connections for operatively connecting theratchetwheel to rotate with the platen when said finger-wheel is turnedor for effecting a movement of the platen with relation to thelinespacing wheel. v

17 In a type-writing machine, the combination of a platen, aline-spacing ratchet-wheel therefor, a finger-wheel rigidly connected tothe ratchet-wheel, intermediate differential gearing between saidratchet-wheel and the platen which enables the line-spacing ratchetwheeland platen to be turned together through said finger-wheel, and meansindependent of the finger-wheel for transmitting movement to saiddifferential gearing and thereby effecting a movement of the platenrelatively to the ratchet-wheel.

18. In a type-writing machine, the combination of a platen, aline-spacing ratchet-wheel, a finger-wheel rigidly connected to thelinespacing ratchet-wheel for rotating said platen and ratchet-wheeltogether, a regulating finger-wheel, and a train of intermediatedifferential gearing between said regulating fingerwheel and the platen,and between the regulating finger and ratchet wheels, whereby a movementof the regulating-wheel is effective to move the platen relatively tothe ratchetwheel, said regulating finger-wheel, line-spacing wheel-anddifferential gearing being located at one end of the platen.

19. In a type-writing machine, the combination of aplaten, aline-spacing ratchet-wheel, a finger wheel rigidly connected to saidratchet wheel for rotating said platen and ratchet-wheel together, aregulating fingerwheel movable independently of the platen, and a trainof intermediate differential gearing between said regulatingfinger-wheel and the platen and between the regulating finger andratchet-wheels, certain of said gears being carried by the regulatingfinger-wheel, whereby a movement of the regulating fingerwheel iseffective to move the platen relatively to the ratchet-wheel, saidgearing forming an operative connection from the first-mentionedfinger-wheel to the platen so that said fingerwheel is effective to turnthe line-spacing wheel and platen together.

20. In a type-writing machine, the combination of a platen, aline-spacing ratchet-wheel, a finger-wheel for rotating said platen andratchet-wheel, a regulating finger-wheel, a gear.

connected to said ratchet-wheel, a gear connected to the platen, and agear which is carried by the regulating finger-wheel and cooperates withthe other gears to effect a movement of the platen with relation to theratchetadapted to revolve with and to turn relatively v to theregulatingfinger-wheel and which cooperates with the other gears to effect amovement of the platen with relation to the ratchetwheel when theregulating-wheel is turned.

22. In a type-writing machine, the combination of a platen, aline-spacing ratchet-wheel therefor, a train of differential gearscooperating with the platen and ratchet-wheel, and hand-operated meansfor operating said gears to effect a movement of the platen withrelation to the ratchet-wheel, said line-spacing wheel, gears andhand-operated means for actuating the gears being located outside of theplaten and at one end thereof.

23. In atype-writing machine, the combination of a platen, aline-spacing ratchet-wheel therefor, a train of differential gearscooperating with the platen and ratchet-wheel, handoperated means foroperating said gears to effeet a movement of the platen with relation tothe ratchetwheel, and independent hand-operated means for tiirning theratchet-wheel, platen and gears together to effect the linespacingmovement of the platen.

2a. In a type-Writing machine, the combination of a platen, aline-spacing ratchet-wheel therefor, a train of toothed differentialgears cooperating with the platen and ratchet-wheel, hand operated meansfor operating said toothed gears to effect a movement of the platen withrelation to the ratchet-wheel, and a spring for maintaining the gears inclose mesh and to avoid lost motion.

25. In a type-writing machine, the combinaand gears together to effect aturning of the platen for ordinary line-spacing.

Signed at Arlington, in the county of Bennington and State of Vermont,this 15th day of November, A. D. 1901.

WILLIAM C. FARNUM.

Witnesses:

FRANKLIN Soo'r'r, J. J. KEATOR.

